ABSTRACT
With the economic and social development, urban transport problems become a cause of concern. People, vehicles, road nexus coordination of traffic management has become one of the major issues to be resolved. Urban traffic control systems for urban traffic data monitoring, traffic lights and traffic control computer integrated management system, which is modern urban traffic control systems command the most important component.
This system adopts MSC-51 series Single Chip Microcomputer Intel8051 with but programming parallel interface chip 8255 A of I/O is central device the design controller of traffic lights, the system can measure according to actual wagon flow the P1 installation bonus and green light that passes through 8051 chips burn to light the function of time.
Keywords: Single Chip Microcomputer Traffic lights Controller